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3rd rig of Free Radio Nova

Free Radio Nova Valve Shortwave Transmitter

Front of my 3rd rig, switches for gain- and mod level, grid and cathode measurement plus fan for cooling.

 

Free Radio Nova Valve CV4055 6146W Shortwave Transmitter

Seen from above .....below the CV4055 the frequency switch, above the crystal. To your right the 6146W and tank circuit. To your left the audio section.

 

Free Radio Nova Valve CV4055 6146W Shortwave Transmitter

Seen from the bottom....

 

Free Radio Nova Valve 6146W Shortwave Transmitter

Capacitors, coil and 6146W. Nominal output power a perky 35-45 watts.

 

Free Radio Nova Audio BU2900 BU2905

Audio section; at the left the BU2900/5, in the middle the low- and high pass audio filters and limiter.

 

2nd rig of Free Radio Nova

Free Radio Nova Valve Shortwave Transmitter

Front of my 200 Watt rig for the 76 meter band.

 

Free Radio Nova Valve Shortwave Transmitter

Back of my rig; it really needs two fans.

 

Free Radio Nova Tank Circuit

Free Radio Nova Valve 6BH6 EL84 6L6GT 807

Seen from above; a good view of transformers and tank circuit. To your left the 6BH6 (crystal oscilator), EL84 (buffer), 6L6GT (clamp) and 4 * 807 (end stage).

 

Free Radio Nova Valve Shortwave Transmitter

Seen from the bottom.....

 

Free Radio Nova Endstage Shortwave Transmitter

In the end-stage 4 * 807 in parallel.. nominal output power 200 Watts!

 

Free Radio Nova Capacitors Coil Shortwave Transmitter

Capacitors and coil.

 

Free Radio Nova MOSFET amplifier

The 215 Watt MOSFET amplifier build in a different box.

 

Free Radio Nova Valve 807 Shortwave Transmitter

The 807s I was using where made in May 1944.....

 

1st rig of Free Radio Nova

Free Radio Nova Valev Shortwave Transmitter

Front of my first rig.

 

Free Radio Nova Valev Shortwave Transmitter

Seen from above.....

 

Free Radio Nova Valev Shortwave Transmitter

Seen from the bottom.....

 

Free Radio Nova Valve CV2179 6146B Shortwave Transmitter

Tank circuit after frequency change plus crystal, CV2179 and 6146B.

 

 

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